Signments



(No Model.)

R. B. CISSBL.

RoTARY PAN.

No. 380,788. Patented Apr. l0, 1888.

. l N .f gj y i mi .faggumnlll /N VEN rol? Afro/Mms Nirnn raras PATENT Ori-iena ROBERT B. OISSEL, OF ELIZABETH, ASSIGN OR, EY DIRECT AND MESNE AS- SIGNMENTS, TO THE BAOKUS WATER MOTOR N EV JERSEY.

COMPANY, OF NEWARK,

ROTARYY FAN.

SPECIFICATION forming part of Letters Patent No. 380,788, dated April lO, 1888.

Application filed December 2S, 1587. Serial No. 259,225. (No model.)

To aZZ whom, it may concern:

Beit known that I, ROBERT B. Gissnn, of Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Rotary Fans, of which the following is a speciiication.

This invention relates to an improved clutch j device for rotary fans of that class which is used for Ventilating and cooling rooms, said clutch device facilitating the locking to or releasing of the fan from the driving-shaft, so as to rotate orstopthesame; andtheinvention con; sists of a clutch device for rotary fans, which comprises a collar attached tothe driving-sh aft below the loose hub of the fan, said collar being provided with radial recesses at the under side, lugs applied to a transverse spring-plate that is supported by adjustable sockets of a supporting-frame made integral with the hub, a spindle swiveled to said spring-plate and guided in a bearing at the lower end of the clutch-frame, said spindle being provided with a drip-cup for the oil and a button below said cup. The supporting-sockets of the springplate are adjusted in the recesses of the clutchframe by means of set-screws, so as to set the spring-plate to tension and produce the proper interlocking of the lugs supported on said spring-plate, with the recesses of the collar on the driving-shaft, so as to rotate the fan-hub with said shaft.

In the accompanying drawings, Figures l and 2 represent side elevations oi' my improved clutch device for rotary fans, Fig. 2 being taken at an angle of ninety degrees to the side view shown in Fig. l. Fig. 3 is a vertical transverse section on line x x, Fig. 2, showing the clutch withdrawn from the collar of the fanshaft and the fan at rest. Fig. 4 is a horizontal section on line y y, Fig. 2; and Figs. 5 and 6 are a detail bottom view and side view of the iixed collar applied to the driving-shaft.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents a driving-shaft, which is suspended in any approved manner by a suitable hanger-frame from the ceiling.

the driving-shaft A, and provided with dia- B is a fan-hub, which is placed loosely on 5o metrical sockets for the blades of the fan and with inclined intermediate sockets for applying downwardly-extending auxiliary fans.

To the lower end of the driving-shaft A,and below the lower edge of the loose fan-hub B,is rigidly secured a collar, C, which is retainedl in position on the shaft bya set-screw, d. The collar C is provided at the under side with radial recesses a, which are engaged by lugs b, that are applied to a supporting-ring,.b, which is attached by fastening-screws b2 to a transverse spring-plate, D, that extends dianietrically across the clutch-frame E, said springplate being supported in adjustable sockets e e, that are guided in recesses e of the clutchframe. The sockets e e are set closer to or farther away from each other by set-screws e2, that pass through the clutch-frame E, `so as to set the spring-plate to a greater or smaller degree of tension, and cause thereby the reliable interlocking of the lugs Z) with the recesses a ofthe fixed collar C. To the center of the springplate D and axially in line with the drivingshaft A is swiveled by a headed screw,f, a spindle,F, which turns in central bearings,`f, at the lower end of the clutch-frame E, said spindle being provided with a drip-cup, f2, and below the same with a button, f,

The clutch-frame E is formed of four radial arms, gg', of which the arms g support the spring-plate D, while the drums g are arranged at right angles to the arms g and extended upwardly to the fan-hub B, the clutch-frame E being preferably east integral with the hub, as shown clearly in Fig. 2. 'The spring-plate supporting-armsg are connected by a ring-shaped portion, g2, which imparts the required degree of strength and stiffness to the clutch-frame. For rotating the fan with the driving-shaft the knob fs oi' the spindle is taken hold oi and the same lifted, so that the spring-plate D springs into its uppermost position and moves the lugs b into the recesses a of the fixed collar C, whereby the clutch-frame, fan-hub, and fan are carried along with the driving-shaft. By pull- 9 5 ing the button of the spindle F in downward direction the spring plate springs into its lowermost position, as shown in Fig. 3, so as to Withdraw the lugs b from the recesses of the collar C and release thereby the fan-hub from the driving-shaft, so that the latter rotates without taking the fan along. As the spindle F is swiveled to the spring-plate, it does not rotate with the clutch-frame when taken hold of, so that the clutch maybe operated Without difficulty whether the fan is in motion or at rest. The drip-cup of the spindle F takes up any waste oil that passes from the journalbearing 0f the `an-hub to the lower end of the fan-shaft and prevents it from dripping ou the floor. A conveniently-operated and effective clutch device for rotary fans is thus obtained, by which the fans can be quickly thrown in or out of motion, as required.

Having thus described rnyinvention, Iclaim as new and desire to secure by Letters Patentl. The combination, with adriving fan'shaft, a loose fan-hub on the same, a clutch-frame made integral with the fan-hub, a recessed co1- lar applied to the driving-shaft below the fanhub, a transverse spring-plate supported by the clutch-frame, lugs attached to the springplate and engaging the recesses of the collar, and a spindle swiveled to the spring-plate and guided in bearings of the clutch frame, substantially asset forth.

2. The combination, with a fixed collar at the lower end of the driving-shaft, said collar having recesses at the under side, a clutehframe, a fan-hub located above the collar and made integral with said fan-hub, a transverse springplate, adjustable sockets guided in recesses of the clutch-frame, lugs attached to the spring-plate and engaging the recesses of the collar, and a spindle swiveled to the springplate' and guided in bearings of the clutch- 4o frame, substantially as set forth.

In testimony that I claim theforegoing as my invention I have signed my naine in presence of two subscribing witnesses.

ROBERT B. CISSEL.

Witnesses:

PAUL GOEPEL, SIDNEY MANN. 

